Armrest for chair

ABSTRACT

An object of the present invention is to provide an armrest for a chair capable of receiving writing instruments as well as supporting the arm. To this end, the armrest for the chair of the present invention is an armrest for a chair provided on a seat part through a supporter and supporting a user&#39;s arm, which includes a receiving case for supporting the arm which is provided on the upper end of the supporter and elongated in a front-rear direction with respect to the seat part, and has an upper opening part; and an arm rest cover opening and closing the upper opening part and supporting the user&#39;s arm.

TECHNICAL FIELD

The present invention relates to a chair.

BACKGROUND ART

In general, a chair is one piece of furniture for a person to sit on andincludes a backrest, a seat and a leg. Various types of these chairshave been invented depending on various conditions such as materials tobe applied as well as usage and structures, and are widely used forstudents and office use.

FIG. 1 is a view schematically illustrating a conventional chair.

As illustrated in FIG. 1, the conventional chair includes a leg 1supporting from the ground, a seat part 2 on which a user's hip isseated, a backrest 3 supporting the back, wheels 4 provided in the leg 1to apply movability, and armrests 5 provided at both sides of the seatpart to support user's arms. Here, the seat part may be formed of a seatplate, and may also include a tilting device capable of tilting thebackrest on the bottom surface of the seat plate.

Among them, the armrest for the chair is a device for comfortablysupporting the user's arm when the user sits on the chair, and asillustrated in FIG. 1, includes a supporter 6 vertically provided toboth sides of the seat part 2, and a holder 7 made of a synthetic resinand the like while being installed horizontally in a front-reardirection on the upper end of the supporter 6.

However, there is a problem in that the conventional armrest for thechair is limited to the purpose of supporting the arm.

DISCLOSURE Technical Problem

An object of the present invention is to provide an armrest for a chaircapable of receiving writing instruments as well as supporting the arm.

Another object of the present invention is to provide an armrest for achair capable of holding a cup.

Technical Solution

In order to achieve the object, an armrest for a chair according to anexemplary embodiment of the present invention is an armrest for a chairprovided on a seat part through a supporter and supporting a user's arm,which includes a receiving case for supporting the arm which is providedon the upper end of the supporter and elongated in a front-reardirection with respect to the seat part, and has an upper opening part;and an arm rest cover opening and closing the upper opening part andsupporting the user's arm.

The armrest for the chair may further include a cup holder providedbetween the upper end of the supporter and the receiving case forsupporting the arm and holding a cup.

The armrest for the chair may further include a case rotating part whichrotatably provides the receiving case for supporting the arm on the cupholder so that the cup holder is covered or exposed to the outside bythe receiving case for supporting the arm.

The cup holder may include a cup holder body having a plate shape, andone or more cup seating holes which are formed in the cup holder body toseat the cup.

The cup holder body may have the same size and the same shape as thebottom surface of the receiving case for supporting the arm.

The case rotating part may include a vertical hinge shaft which isprovided on one of the cup holder body and the receiving case forsupporting the arm and vertically provided on the upper surface of thecup holder body; and a vertical hinge hole which is provided in theother one of the cup holder body and the receiving case for supportingthe arm and rotatably inserted into the vertical hinge shaft.

The receiving case for supporting the arm may include one or morepartition walls partitioning an inner space thereof.

The armrest for the chair according to the exemplary embodiment of thepresent invention may further include a cover rotating part whichrotatably provides the arm rest cover to the receiving case forsupporting the arm; an opening elastic body which is provided on thecover rotating part and applies an elastic force in a direction in whichthe arm rest cover is opened; and a cover locking part which is providedbetween the receiving case for supporting the arm and the arm restcover, so that the arm rest cover is in a closed or open state withrespect to the upper opening part.

The cover locking part may include a locking member which is provided toprotrude from the bottom surface of the arm rest cover and has a lockinghole; a pinion which is rotatably provided in the receiving case forsupporting the arm; a first rack which is engaged with the pinion andhas an insertion end corresponding to the locking hole; a second rackwhich is engaged with the pinion and moves in an opposite direction tothe first rack, and has a pressing end exposed to the outside of thereceiving case for supporting the arm; and a locking elastic body whichis provided between the pinion and the receiving case for supporting thearm and applies a rotational force in a direction in which the insertionend of the first rack is inserted into the locking hole.

The upper surface of the insertion end may have a shape that isgradually inclined downward in the inserted direction.

The armrest for the chair according to the exemplary embodiment of thepresent invention may further include a cushion member provided on theupper surface of the arm rest cover.

Advantageous Effects

As described above, the armrest for the chair according to the exemplaryembodiment of the present invention may have the following effects.

According to the exemplary embodiment of the present invention, sincethere is provided a technical configuration of including the receivingcase for supporting the arm and the arm rest cover, the user can receivearticles such as writing instruments and the like through the upperopening part of the receiving case for supporting the arm by opening thearm rest cover while supporting the arm using the arm rest cover, thatis, receive the articles such as writing instruments in the armrest forthe chair of the present invention closest to the user's hand.Accordingly, it is possible to not only rapidly and easily use thereceived articles, but also efficiently use a space on a desk evenwithout providing a separate writing instrument shelf or writinginstrument case for a narrow desk.

Further, according to the exemplary embodiment of the present invention,since there is provided a technical configuration of further includingthe cup holder, a cup can be held on the armrest for the chair of thepresent invention closest to the user's hand. Accordingly, it ispossible to not only use quickly and easily the held cup and efficientlyuse a space on a desk even if the cup is not placed on a narrow desk.

Further, according to the exemplary embodiment of the present invention,since there is provided a technical configuration of further includingthe case rotating part, the cup holder may be covered or exposed to theoutside by rotating the receiving case for supporting the arm.Accordingly, when the use of the cup holder is not required, the cupholder is positioned under the receiving case for supporting the arm, soas to efficiently use a space occupied by the armrest for the chair ofthe present invention.

Further, according to the exemplary embodiment of the present invention,since there is provided a technical configuration of further includingpartition walls portioning the inner space of the receiving case forsupporting the arm, the articles such as writing instruments and thelike may be separated stored, thereby more efficiently using the innerspace of the receiving case for supporting the arm.

Further, according to the exemplary embodiment of the present invention,since there is provided a technical configuration of further includingthe cover rotating part, the opening elastic body, the cover lockingpart, the arm rest cover may be automatically opened by the elasticforce of the opening elastic body only by manipulation of the coverlocking part without loss of the arm rest cover, and the arm rest covermay be automatically locked by the cover locking part while the userapplies an opposite force.

Further, according to the exemplary embodiment of the present invention,since there is provided a technical configuration of further includingthe cushion member, it is possible to provide a sufficient cushioningfeeling when the user puts his or her arm on the arm rest cover.

DESCRIPTION OF DRAWINGS

FIG. 1 is a view schematically illustrating a conventional chair.

FIG. 2 is a perspective view schematically illustrating an armrest for achair according to an exemplary embodiment of the present invention.

FIG. 3 is a diagram of the armrest for the chair of FIG. 2 taken alongline FIG. 4 is a diagram enlarging a portion “A” of the armrest for thechair of FIG. 3.

FIG. 5 is a diagram schematically illustrating a state in which an armrest cover of the armrest for the chair of FIG. 3 is opened.

FIG. 6 is a diagram of the armrest for the chair of FIG. 2 taken alongline VI-VI.

FIG. 7 is a view schematically illustrating a state in which a receivingcase for supporting the arm is rotated so that a cup holder of thearmrests for the chair of FIG. 2 is exposed to the outside.

MODES FOR THE INVENTION

Hereinafter, exemplary embodiments of the present invention will bedescribed in detail with reference to the accompanying drawings so as toeasily implement those with ordinary skill in the art to which thepresent invention pertains. However, the present invention may beimplemented in various different forms and is not limited to theembodiments described herein.

FIG. 2 is a perspective view schematically illustrating an armrest for achair according to an exemplary embodiment of the present invention,FIG. 3 is a diagram of the armrest for the chair of FIG. 2 taken alongline and FIG. 4 is a diagram enlarging a portion “A” of the armrest forthe chair of FIG. 3. FIG. 5 is a diagram schematically illustrating astate in which an arm rest cover of the armrest for the chair of FIG. 3is opened.

FIG. 6 is a diagram of the armrest for the chair of FIG. 2 taken alongline VI-VI and FIG. 7 is a view schematically illustrating a state inwhich a receiving case for supporting the arm is rotated so that a cupholder of the armrests for the chair of FIG. 2 is exposed to theoutside.

As illustrated in FIGS. 2 to 7, an armrest 100 for a chair according toan exemplary embodiment of the present invention is an armrest for achair provided on a seat part 2 through a supporter 6 and supporting auser's arm, and may include a receiving case 110 for supporting the armand an arm rest cover 120. Hereinafter, respective components will bedescribed in detail with reference to FIGS. 2 to 7.

The receiving case 110 for supporting the arm is a component for notonly supporting the load of the user's arm, but also receiving articlessuch as writing instruments. Such a receiving case 110 for supportingthe arm, as illustrated in FIG. 2, may be provided on the upper end ofthe supporter 6, and may be elongated in a front-rear direction withrespect to the seat part 2, and as illustrated in FIGS. 3 to 6, may havean upper opening part 112 that communicates with an inner accommodationpart 111.

In addition, as illustrated in FIG. 6, the receiving case 110 forsupporting the arm may include one or more partition walls 113 thatpartition the inner accommodation part 111 as the inner space thereof.Accordingly, it is possible to separately store articles such as writinginstruments through the one or more partition walls 113 to moreefficiently use the inner accommodation part 111 of the receiving case110 for supporting the arm.

The arm rest cover 120 is a component for not only supporting the user'sarm, but also opening and closing the upper opening part 112 of thereceiving case 110 for supporting the arm. As illustrated in FIGS. 3 and5, the arm rest cover 120 may be rotatably provided in the receivingcase 110 for supporting the arm.

Accordingly, since these components are provided, the user may receivearticles such as writing instruments in the inner receiving part 111through the upper opening part 112 of the receiving case 110 forsupporting the arm by opening the arm rest cover 120 while supportingthe arm using the arm rest cover 120, that is, receive the articles suchas writing instruments in the armrest 100 for the chair of the presentinvention closest to the user's hand. Accordingly, it is possible to notonly rapidly and easily use the received articles, but also efficientlyuse a space on a desk even without providing a separate writinginstrument shelf or writing instrument case for a narrow desk.

In addition, as illustrated in FIGS. 2 to 7, the armrest 100 for thechair according to the exemplary embodiment of the present invention mayfurther include a cushion member 130 provided on the upper surface ofthe arm rest cover 120. Therefore, when the user places the arm on thearm rest cover 120, a sufficient cushioning feeling may be provided.

In addition, the armrest 100 for the chair according to the exemplaryembodiment of the present invention may further include a cup holder140, as illustrated in FIGS. 2, 3, and 5 to 7. The cup holder 140 is acomponent for holding the cup. As illustrated in FIGS. 6 and 7, the cupholder 140 may be provided between the upper end of the supporter 6 andthe receiving case 110 for supporting the arm.

Accordingly, a cup (not illustrated) can be held on the armrest 100 forthe chair of the present invention closest to the user's hand throughthe cup holder 140, so that the held cup may be not only used quicklyand easily and a space on the desk may also be efficiently used even ifthe cup is not placed on the narrow desk.

For example, as illustrated in FIGS. 6 and 7, the cup holder 140 mayinclude a cup holder body 141 and one or more cup seating holes 142. Thecup holder body 141 may have a plate shape, and the cup seating hole 142may be formed in the cup holder body 141 and the cup may be seated inthe form in which the cup is accommodated.

Furthermore, the cup holder body 141 may have the same size and the sameshape as the bottom surface of the receiving case 110 for supporting thearm, as illustrated in FIGS. 2, 3 and 6.

In addition, as illustrated in FIGS. 6 and 7, the armrest 100 for thechair according to the exemplary embodiment of the present invention mayfurther include a case rotating part 150. As illustrated in FIGS. 6 and7, the case rotating part 150 may rotatably provide the receiving case110 for supporting the arm on the cup holder 140 so that the cup holder140 is covered or exposed to the outside by the receiving case 110 forsupporting the arm.

Therefore, the cup holder 140 may be covered or exposed to the outsideby rotating the receiving case 110 for supporting the arm through thecase rotating part 150 (see FIG. 7), and when the use of the cup holder140 is not required, the cup holder 140 is positioned under thereceiving case 110 for supporting the arm (see FIG. 2), so as toefficiently use a space occupied by the armrest 100 for the chair of thepresent invention.

For example, the case rotating part 150 may include a vertical hingeshaft 151 and a vertical hinge hole 152 as illustrated in FIGS. 6 and 7.The vertical hinge shaft 151 is provided on the cup holder body 141 andmay be vertically provided on the upper surface of the cup holder body141, and the vertical hinge hole 152 is provided in the receiving case110 for supporting the arm and may be rotatably inserted into thevertical hinge shaft 151. Of course, although not illustrated, thevertical hinge shaft may be provided in the receiving case forsupporting the arm, and the vertical hinge hole may also be provided inthe cup holder.

In addition, as illustrated in FIGS. 3 to 5, the armrest 100 for thechair according to the exemplary embodiment of the present invention mayfurther include a cover rotating part 160, an opening elastic body 170,and a cover locking part 180.

The cover rotating part 160 may rotatably provide the arm rest cover 120to the receiving case 110 for supporting the arm, and the openingelastic body 170 may be provided on the cover rotating part 160, and mayapply an elastic force in a direction in which the arm rest cover 120 isopened. The cover locking part 180 may be provided between the receivingcase 110 for supporting the arm and the arm rest cover 120, and the armrest cover 120 may be in a closed or open state with respect to theupper opening part 112.

Accordingly, the arm rest cover 120 may be automatically opened by theelastic force of the opening elastic body 170 only by manipulation ofthe cover locking part 180 without loss of the arm rest cover 120, andthe arm rest cover 120 may be automatically locked by the cover lockingpart 180 while the user applies an opposite force.

For example, the cover locking part 180, as illustrated in FIG. 4, mayinclude a locking member 181, a pinion 182, a first rack 183, a secondrack 184, and an engaging elastic body 185. The locking member 181 maybe provided to protrude from the bottom surface of the arm rest cover120 and may have a locking hole 181 a. The pinion 182 may be rotatablyprovided in the receiving case 110 for supporting the arm, the firstrack 183 may be engaged with the pinion 182 and have an insertion end183 a corresponding to the locking hole 181 a, and the second rack 184is engaged with the pinion 182 and moves in an opposite direction to thefirst rack 183, and may have a pressing end 184 a exposed to the outsideof the receiving case 110 for supporting the arm. The locking elasticbody 185 may be provided between the pinion 182 and the receiving case110 for supporting the arm, and may apply a rotational force in adirection in which the insertion end 183 a of the first rack 183 isinserted into the locking hole 181 a. Furthermore, the upper surface ofthe insertion end 183 a may have a shape that is gradually inclineddownward in the insertion direction of the insertion end 183 a, asillustrated in FIG. 4.

Accordingly, when the user presses a pressing end 184 a of the secondrack 184, the insertion end 183 a of the first rack 183 that is moved inthe opposite direction through the pinion 182 is removed from thelocking hole 181 a and at the same time, the arm rest cover 120 may beopened by the elastic force of the opening elastic body 170. When theuser closes the arm rest cover 120, the insertion end 183 a of the firstrack 183 is retracted backward by the pressing force of the lockingmember 181, and then the locking member 181 further comes down so thatthe insertion end 183 a may be positioned in the engaging hole 181 a ofthe locking member 181. As such, when the insertion end 183 a ispositioned in the locking hole 181 a, the insertion end 183 a of thefirst rack 183 is moved in the direction to be inserted into the lockinghole 181 a by the elastic force of the locking elastic body 185, and atthe same time, is caught in the locking hole 181 a so that the arm restcover 120 may be maintained in a closed state.

Of course, although not illustrated, as another example, the coverlocking part may also have a mechanism including a locking memberprovided on the bottom surface of the arm rest cover and having alocking hole, a hook provided rotatably on the receiving case forsupporting the arm and corresponding to the locking hole, and a lockingelastic body applying a rotational force in the direction in which thehook is inserted into the locking hole.

While the preferred exemplary embodiment of the present invention hasbeen described in detail, the scope of the present invention is notlimited thereto, and various modifications and improvements of thoseskilled in the art using a basic concept of the present inventiondefined in the appended claims also belong to the scope of the presentinvention.

INDUSTRIAL APPLICABILITY

The present invention relates to a chair, and has industrialapplicability.

1. An armrest for a chair provided on a seat part through a supporterand supporting a user's arm, comprising: a receiving case for supportingthe arm which is provided on the upper end of the supporter andelongated in a front-rear direction with respect to the seat part, andhas an upper opening part; and an arm rest cover opening and closing theupper opening part and supporting the user's arm.
 2. The armrest for thechair of claim 1, further comprising: a cup holder provided between theupper end of the supporter and the receiving case for supporting the armand holding a cup.
 3. The armrest for the chair of claim 1, furthercomprising: a cushion member provided on the upper surface of the armrest cover.